Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Reinstalling Win7, error code 0x0000007E

I stopped using my desktop PC a couple of years back due to multiple BSODs and not being able to fix it. I have recently tried to repair it.

I have created a Windows 7 Home Premium Installation Disk and have my Product Key. I booted from this disk and carried out the setup until the installation stopped as it was expanding files, with the error message 0x80070570. During this time I deleted my partitions to leave me with one block of disc space.

I read that a fix for this was to remove all but 1 stick of RAM, so I removed the other three and tried again, leaving me with 2GB of RAM. I load the disk, windows loads the files (the black screen with the progress bar at the bottom) and then blue screens with the error message "STOP: 0x0000007E (0xFFFFFFFFC0000005, 0xFFFFF8000D2BA970, 0xFFFFF880009A9418, 0xFFFFF880009A8C70)

I'm at a bit of a loss to be honest and any help would be greatly appreciated!!

Boot into BIOS setup, reset to defaults, save changes. (If an EFI BIOS you'll need to decide if you want UEFI BIOS vs. Legacy BIOS. If UEFIfollow these special steps for Install, otherwise enable Legacy BIOS or Compatibility Support Module to proceed with normal install.) Set DVD drive first to boot, HD second, set SATA controller to AHCI, Save changes and Exit.

Then boot into Windows 7 installer DVD or flash stick burned or written using tool and latest ISO for your licensed OS version here.

After install you can adjust partition size or Create new partitions for data, etc. in Disk Mgmt. You are creating the partition here for the purpose of wiping the HD and marking Active which overcomes certain install failures.

I'd actually already started using Memtest, and have worked out (please correct me if I'm wrong) that I have 3 faulty sticks of RAM (see attached Word document). Only one stick worked on all ports, and the other three had errors on all ports. Am I correct in saying that it is faulty RAM and not the motherboard ports?

The HD check was fine, I ended up using the Seagate option because my hard drive model was not listed on the Samsung website. I followed your BIOS instructions, and your command box instructions to create a primary partition and format it, then started the Windows installation again. It got to the exact same point as before, with the same error message: "Windows cannot install required files. The files may be corrupt or missing. Make sure all files required for installation are available, and restart the installation. Error code: 0x80070570.

The installer worked brilliantly, it installs fine, gets to the first time use bit and when I put the product key in it isn't the right format... it should be XXXXX-XXXXX-XXXXX-XXXXX-XXXXX but it is in the format XXXXX-OEM-XXXXXXX-XXXXX instead. Am I looking at the wrong thing?

Reinstalling Win7, error code 0x0000007E

BSOD STOP code 0x0000007EI've been having a daily BSOD the past week or so, and I'm not savvy enough to figure it out. Error message given is as follows:
STOP: 0x0000007E (0xFFFFFFFFC0000005, 0xFFFFF880042B6D7B, 0xFFFFF88007C9E8D8, 0xFFFFF88007C9E130)
bckd.sys - Address FFFFF880042B6D7B base at FFFFF880042B5000,...

BSOD Help and Support

MBR error on reinstalling Win7 to clean HDI have been having problems for almost 2 years now, since installing Windows 7 on a new pc --- specifically with Windows Update not working. I have paid for Microsoft support, and I learned after that that I didn't have to because WU problems are covered under their warranty. Working directly with...

Installation & Setup

BSOD Stop error code 0x0000007EGreetings benevolent community.
I have a Sony Vaio T series Laptop (Model SVT131A11W) made in China bought in India. Great machine while it lasted. Yesterday had trouble connecting to Skype. Decided to restart. The following appeared on the dreaded Blue Screen...
Technical information:
STOP:...